Trimming machine



June 2, 1931. N. w. MATHEY 1,807,996

TRIMMING MACHINE Filed May 27, 1929 Sheets-Sheet 1 WWW mis Wbrzq .5.

June 2, 1931.

N. w. MATHEY 1,807,996

THIMMING `MACHINE Filed May 27. 1929 2 Sheets-Sheet 2 Patented June 2,1931 PATENT OFFICE NICHOLAS W. MATHEY, OF BOSTON, MASSACHUSETTSTBIMMING- MACHINE Application illed May 27,

This invention pertains to the manufacture of footwear and relates moreparticularly to apparatus for trimming the breast covering flaps of woodheels. In making shoes with wood heels it is usual to skive up a thinfiap from the rear portion of the outer sole and after the heel has beensecured in position, this flap is cemented to the breast surface of theheel, thus forming a smooth finish for the latter. Since the contour' ofthe heel seatportion of the outer sole is not like that of the breastsurface of the heel, it is necessary, after the iiap is attached to theheel, to trim olf the surplus material of the `marginal portions of theiiap. Heretofore, the operation has been performed by the use of a knifein the hands of a skilled operator, but the operation is slow, addsunduly' to the cost of manufacture, and unless great care be employed,the finished outer surface of the heel, as well as adjacent parts of theupper mayV be damaged. Moreover, in accordance with the usual handmethod, the operators knife,

being guided solely by the outer surface of the heel, makes a more orless square and irregular cut, although a uniformly beveled edge wouldbe better both from the standpoint of appearance and for permanence ofattachment of the iap.

In accordance with the present invention I have provided apparatuscapable of trimming the heel flap i n a small fraction of the timeusually necessary; without substantial possibility of damage to adjacentparts of 3 the shoe; and without requiring skilled or expensive labor;and which at the same time,

if desired, provides a uniformly beveled edge upon the marginal portionof the flap.

In the accompanying drawings, wherein I have illustrated certaindesirable embodiments of the invention by way of example;

Fig. 1 is a fragmentary view illustrating a single trimmer head invertical section and showing the rear part of a shoe (in bottom 1929.Serial No. 366,206.

elevation) undergoing the trimming operation;

Fig. 2 is an elevation showing the righthand side of the device, asillustrated in Fig.

1, but with the outer cover plate removed;

Fig. 3 is a composite view showing the cutter device in side and edgeelevation re-H spectively;

Fig. 4 is a section substantially on the line 4 4 of Fig. 3;

Fig. 5 is a section substantially on the line 5 5 of Fig. 1;

Fig. 6 is a bottom plan view illustrating the cutter blade, the workrest, and the feed roll; o0

Fig. 7 is a side elevation showing the work rest and its supporting stemremoved from the machine;

Fig. 8 is a section substantially on the line 8-8 of Fig. 7

Fig. 9 is a fragmentary bottom plan view of a shoe showing theappearance of the heelbreast flap after being stuck in position butbefore trimming;

Fig. 10 is a section transversely through 70 the shoe heel after theflap has been trimmed and showing the beveled edges produced in thepresent operation; and

Fig. 11 is a front elevation showing a machine provided with two trimmerheads 75 adapted to trim opposite sides of the heel simultaneously andshowing a shoe heel in transverse section undergoing the trimmingoperation.

Referring first to Figs. 1 to 10 inclusive, 80 the machine com rises atrimmer head 1,

referably comprising a. casting which may e rigidly supported upon asuitable standn ard, not shown, or which, as will hereinafter bereferred to, may be movably mounted S5 upon such standard. The standardmay be of any suitable type, such as is commonly employed for supportingshoe-operating machines, and which may carry the usual drive shaft andpulleys adapted to receive motion from a line shaft, it beingunderstood, however, that any suitable type of drive mechanism may beused.

The head 1 provides bearings for the shaft 2, and is provided with achamber 3 into which one end of the shaft 2 projects. The front of thischamber is referably closed by a removable plate 4 having a bearing toreceive the front end of the shaft 2. The forward end of the shaft 2 isprovided with an eccentric drive pin 5 for a purpose hereinafter morefully described. Within the chamber 3, the plate 4 carries bearing lugs6 and 7 adapted to support. a secondary, substantially vertical driveshaft 8 provided with a beveled gear 9, meshing with a gear 10 fast tothe shaft 2.

A driver bar 11 is pivotally mounted upon a shouldered screw 12 engaginga screwthreaded opening in the front of the plate 4, the pivotal pointof the bar 11 preferably being substantially midway between its ends.The upper end of the bar 11 is provided with an elongate slot 13 whichreceives the eccentric pin 5 on the shaft 2. Preferably this pin isprovided with an anti-friction bushing 5a, and as the shaft 2 rotates,the drive bar 11 is caused to oseillate about its pivot pin 12. Thelower end of the drive bar 11 is provided with a pivot pin 14 whichprojects rearwardly into an opening 14a in a blade carrier 15 which isdisposed between the planes of the front face of the plate 4 and therear face of a recess provided at lower part of the drive bar 11. Theopening 14n in the carrier I5 is intermediate the ends of the latter,and near its upper end the carrier 15 is provided with an elongate slot16 which receives a fixed pin 1T projecting forwardly from the plate 4.

At the lower end of the blade carrier 15, I preferably provide a surface17 (Fig. 3) constituting a guide element for engagement with the outeror lateral surface of the shoe heel. The cutter blade 18 is carried bythe lower end of the carrier 15. As here shown the blade is integralwith the carrier, although I contemplate that the blade may be made asan independent element and attached to the carrier in any desiredmanner. Likewise the guide element 17 may form either an integral partof the carrier 15 or may be integral with the blade 18 or otherwiseformed as desired. In order to secure a good cutting action andparticularly to form a beveled edge at the margin o f the trimmed flap,I arrange the blade 18 obliquely with respect to the plane of thecarrier 15, as shown at the left of Fig. 3. Preferably this blade 18 isprovided with a substantially V- shaped notch or recess 19, one wall 20of this notch being sharpened or ground to form the cutting edge.Preferably, as indicated in Fig. 3, the lower surface of the blade 18may be curved on an arc having the pin 14 as its approximate center asshown at 21.

The lower edge of the plate 4 is provided with a socket opening 22adapted to receive the stem' 23 of a work rest 25. This stem may beadjusted vertically within the socket 22 and may also be turned withinthe socket and after adjustment may be held in position by a set screw24 or other suitable means. As here shown the work rest 25 is of more orless conical shape, having the outer surface 26 which is adapted to fitagainst the breast surface of the heel and which has a contourcorresponding more or less to such heel surface. As here shown, thesurface 26 is eccentric with respect to the axis of the stem 23 so thatby turning the stem 23 Within its socket, the distance between theeffective portion of the surface 26 and the plane of oscillation of thecutter carrier 15 may be varied. Preferably the upper surface 27 of thework rest is concave to accommodate the lower surface 21 of the blade 18as the latter oscillates, the blade moving in very close proximity tothe upper surface of the work rest, the latter in fact acting more orless as a fixed or ledger blade. As will be observed by reference toFig. 6, the cutting edge 20 overlaps the upper surface of the work rest25 and rotary adjustment of the work rest varies the point at which theedge 20 intersects the peripheral edge of the work rest.

A feed roll 28 is mounted to turn upon the stem 23. The lower end ofthis feed roll rests upon the upper surface of the blade 18 which may beproperly shaped to receive it, and is pressed down against the blade bya spring 30. The feed roll is provided with peripheral teeth 29 adaptedto grip the material of the heel Hap and these teeth are also desirablyshaped to act as gear teeth hereafter described. The bore 31 of the feedroll 28 is of substantially greater diameter than the stem' 23 so thatthe feed roll may move bodily in a direction radially of the stem. Aconical gear or driver 32 engages the feed roll 28, such gear beingsecured to the lower end of a feed shaft 33 having a bearing 34intermediate its ends. This bearing 34 is arranged to slide within ahollow boss 35 projecting rearwardly from the plate 4. The upper end ofthe feed shaft 33 is connected by means of a universal joint 36 to thelower end of the auxiliary drive shaft 8. An adjustable spring 37presses against the bearing 34 in such a manner that the gear 32 isyieldingly urged against the feed roll 28, thus pressing the lattertoward the abutment sul` face provided by the inner face of the cuttercarrier 15.

In Fig. 9 I have diagrammatically illustrated a shoe as it appears afterthe breast covering flap has been cemented in position but before it hasbeen trimmed. Thus, the forepart of the outer sole is shown at 38, thebotbreast surface of the heel.

tom of the heel at 39, and the breast surface of the heel at 40, withthe main portion 41 of the flap covering the breast surface of the heel,and with the marginal portions 42 and 43 of thc flap projectinglaterally out-Ward. In the operation of the apparatus above-described,the projecting marginal portion of the flap, for example the portion 42,is caused to enter between the feed roll 28 and the opposed abutmentelement provided by the rear face of the blade carrier 15 as shown inFig. 1, the entry of the flap into this position being facilitated bythe continued rotation of the feed roll. The guide element 17a nowengages the outer surface of the heel, as indicated in Fig. 1 and, itbeing understood that the parts have been properly adjusted, the surface26 of the work rest engages the As the cutter oscillates, the edge 20rapidly trims oli' the material of the flap 43, and by reason of theinclination of the blade 18, the edge of the finished flap is beveled asshown at 44 in Fig. 10. This operation is continued as the shoe is fedforward until the entire marginal portion of the flap has been trimmed,Whereupon the shoe is reversed and the opposite marginal portion islikewise trimmed. During this operation the outer covering of the heel,as Well as the upper of the shoe, is fully protected from the action ofthe cutting blade and the line of cut is accurately determined by thesetting of the Work rest 25 relative to the blade carrier 15.

It is to be noted that the arrangement above described is such that thecutter moves back and forth in the direction of the intended cut and nottranversely through the material. By causing the cutter to move in theplane of the material in this manner, it is possible to obtain a smoothcut and to avoid the ragged fibrous edges which usually result from theemployment of a cutter which moves transversely through the material.While feed mechanism has been described and While such mechanism is inmany cases desirable, it may under some circumstances be dispensed with,the work being advanced relatively to the cutter or the operator.

While in Figs. 1 and 2, I have indicated the cutter head as disposedvertically, it may be arranged in any other position as desired and asmay be most convenient for carrying out the operation. In thearrangement shown in Fig. 1 it is intended to trim the opposite sides ofthe heelsucoessively, but I contemplate that the machine may be providedwith duplicate cutter heads arranged simultaneously to trimoppositesides of the heel. Such an arrangment is shown in Fig. 11.

Referring to Fig. 11, the frame 45 of the machine supports two trimmerheads 46` and 47 which are movable toward and from each other and which,as shown, are pivotally supported at the points 48 and 49 respectively.

Preferably, adjustable stops 50 and 51 limit the movement of the heads46 and 47 toward each other, While springs 52 and 53 yieldingly urge theheads into contact With their respective stops. The heads 46 and 47 areprovided with suitable bearings for shafts 54 and 55 respectively, thelatter, for example, having an extension 56 carrying a drive pulley 57,or other suitable means for rotating it. At their inner ends, the shafts54 and 55 are connected by suitable universal joint means indicated at58 so that rotation of the shaft 55 is imparted to the shaft 54 in allrelative positions of the respective heads.

The operative mechanism of each head is substantially identical withthat above-described With reference to Fig. 1. Thus, the heads areprovided with oscillating drive bars 12L and 12b respectively receivingmotion from eccentric pins carried by rotating shafts 2a and 2b, mountedin bearin s in the respective heads, such shafts ing driven throughsuitable gearings by the shafts 54 and 55 respectively. Likewise, eachhead carries a feed roll, 28a and 28", respectively, said rolls beingdriven by means of auxiliary drive shafts 8a and 8* and suitableintermediate mechanism, the shafts 8a and 8h receiving their motionthrough gearing from the shafts 54 and 55 respectively.

The two heads are provided with Work rests 25B and 25", respectively,having peripheral surfaces adapted to enga e the breast surface of theheel at points a jacent to the opposite edges respectively of thelatter.

The operation of the machine, as illustrated in Fig. 11, is substantiallthe same as that above-described, except that in this instance themarginal portions of the heel flapat opposite sides of the heel arebrought simultaneously into operative engagement With the feed rolls 28and 28b respectively so that as the heel is fed forward by the feedrolls, the llap is trimmed simultaneously at both edges. The trimmerheads move to- Ward and from each other automatically as the work restand guide elements of the respective heads follow the contour of theshoe heel. With this arrangement it is possible to trim both edges ofthe flap at one time, thus still further cutting down the time and costof the operation.

While I have herein disclosed certain desirable embodiments of theinvention by Way of example, I Wish it to be understood that theinvention is not necessarily limited thereto, but that various changesin relative arrangement of parts in the mode of actuating the parts andof adjusting the same may be made, as Well as the substitution ofequivalents for the elements here shown, without departing from thespirit of the invention.

Moreover While the present invention is primarily designed to facilitatethe trimming of heel covering flaps, the combinations andsub-combinations of mechanical parts herein illustrated by way ofexample are well adapted to trim surplus material from an part of ashoe, for example, a rand, welt or lining, and I contemplate that allpossible uses of the invention herein set forth fall Within the purviewof the appended claims.

I claim:

1. Apparatus of the class described comprising a conoidal gage forcontact with the surface of the breast covering flap of a shoe heel, anda cutter having a cuttin edge ada ted to remove surplus material: fromthe reast coverin flap of the heel, the gage acting to support t eflapadjacent the cutter.

2. Apparatus of the class described comprising a reciprocating cutteradapted to remove surplus material from the breast covering flap of ashoe heel, and means for reciprocating the cutter in the direction ofthe intended cut.

3. Apparatus of the class described comprising a rest having a conicalsurface for engagement with the surface of the breast covering flap of ashoe heel, a cutter having its cutting edge disposed in a planeintersecting the plane of the breast surface of a heel engagin the rest,said cutter oscillating over one sur ace of the rest, a means foractuating the cutter to remove surplus material from the breast coveringiap.

4. Apparatus of the class described comprising a. rest for engagementwith the breast surface of a shoe heel, an oscillating cutter having itscutting edge disposed in a plane intersecting the plane of the breastsurface of a heel engaging the rest, and means for oscillating thecutter in the direction of the intended cut. n

5. Apparatus of the class described comprising a cutter for trimmingoil' surplus material from the breast covering Hap of a shoe heel, andan adjustable work rest having a. conical surface for engagement withthe breast surface of the heel, said work rest having an edge forming astationary blade cooperable with the cutter, said work rest constitutinga gage for determining the plane of the cutting action.

6. Apparatus of the class described comprising a cutter for trimming offsurplus ma terial from the breast covering flap of a shoe heel, and aneccentric work rest engageable with the breast surface of the heel, saidrest being adj ustably rotatable and constituting a gage for determiningthe point at which the cutter engages the flap.

7. Apparatus for trimming otl' surplus material from the breast coveringflap of a shoe heel, said apparatus comprising cutting and work feedingmeans means for actuating said feeding means to advance material to becut,

A cutting means, and means for advancing and withdrawing the cuttingmeans, the direction of advance of the cutting means beingYsubstantially opposite to the direction of advance of the material to becut.

8. A paratus for trimming off surplus material rom the breast coveringflap of a shoe heel comprising an abutment element, a feed roll adaptedto press the material of the flap against said abutment element, ablade, and means for reciprocating the blade in the direction of the cutbeing made.

9. Apparatus of the class described comprising an oscillating bladecarrier having a lade disposed at an angle to the plane of the carrierand moving in an arcuate path said blade having a cutting edge, and aworlr rest having a concave surface to accommodate the moving blade,said work rest bein adjustable to expose more or less of the cuttmg edgeof the blade.

10. Apparatus of the class described comprising cutting means fortrimming oi surplus material from the breast covering ilap of a shoeheel, a rotatably adjustable support, and a work rest carried by thesupport, said work rest having an outer peripheral surface which iseccentric to the axis of the support and which is adapted to engage thebreast surface ofthe shoe heel and thereby determine the line of thecutting action.

11. Apparatus of the class described comprising a movable blade carrier,a normally fixed stem disposed in a plane spaced from the plane ofmovement of the blade carrier, a feed roll mounted to turn on said stem,means for turning the feed roll, and a work rest supported by the stem.

12. Apparatus of the class described comprising an oscillating bladecarrier, a blade supported thereb to move in an arcuate path, and a workrest aving a concave surface to accommodate the movmg blade, and a facefor enga ement with the breast surface of a shoe hee 13. Apparatus fortrimming off surplus material from the breast covering flap of a. shoeheel, comprising a blade, means for moving the blade, and a work resthaving an inclined surface o posed to the blade for engagexnent with t ebreast surface of the shoe heel, and the blade being inclined to thebreast surface of the heel.

14. Apparatus for trimming off surplus material from the breast.covering Hap of a shoe heel, comprising a cutter, means, for l movingVthe cutter, and a work rest having an inclined surface for engagementwith the breast surface of a shoe heel the cutter comprising a bladehaving an edge inclined to the breast'surface of the heel and overlaping the work rest, the work rest being a justable to vary the amount ofoverlap of the cutting edge of the blade.

15. A paratus for trimming oi surplus materia from the breast cover-lngflap of a 2 1 shoe heel comprising an oscillating b shoe heel comprisinan oscillating blade carrier, a blade mounte on the carrier, said bladebeing inclined to the plane of oscillation of the carrier, a Worksupport having a surface disposed closely adjacent to the surface of theblade and a surface engageable with the breast of the shoe heel, andfeed means for advancing the work relatively to the blade.

16. A paratus for trimming off surplus materia from the breast coveringfla of a shoe heel comprising an oscillating bla e carrier a blademounted on the carrier, said blade having a substantially V-shapedrecess extending in the direction of movement of the blade, one side ofsaid recess constituting the` cutting edge, and a work rest engageablewith the breast surface of the shoe heel to determine the line of cut.

17. Apparatus for trimming olf surplus material from the breast coveringflap of a shoe heel comprising an oscillating blade carrier, a blademounted on the carrier, a normally fixed stem member substantiallyparallel to but spaced from the plane of movement of the blade carrier,a work rest carried b the stem,a feed roll mounted to turn upon t e stemsaid roll being bodily movable toward and from the plane of oscillationof the blsde carrier, and means for turning the feed ro 18. Alp aratusfor trimming off surplus materia Ifrom the breast covering flap of ashoe heel comprising an abutment element, a cutter blade, a feed rolladapted to press the surplus material of the breast ila against theabutment element, said feed roll being bodily movable toward theabutment element, and means for 'eldingly urging the feed roll towardthe a utment element and for rotating thgeel roll. f E l aratus ortrimmin o lsurp us materialpgmm the breast coveiiing a of a e carrier, ablade mounted on the carrier, a feed roll, and ri means ur g the feedroll in an axial rection towar the blade.

20.*A aratus for trimming off surplus materialmflrom the breast coveringfla of a shoe heel com rising an abutment e ement* disposed in a p ane,a cutter blade, a normally fixed spindle substantially parallel to theplane of the abutment element, a feed roll mounted to turn on thespindle, the feed roll having a bore of a diameter substantially greaterthan that of the spindle whereby to permit bodily movement of the rollradially of the spindle, and means for yieldingly urging the feed rollradially to grip the work between it andthe abutment element and forrotating the feed roll.

21. A paratus for trimming off surplus materialp from the breastcovering fla of a shoe heel comprising an abutment e ement disposed in aplane, a cutter blade, a spindle substantially parallel to the plane ofthe abutment element, a toothed feed roll mounted on the spindle,movable toward and from the abutment element, a gear meshin with theteeth of the feed roll and adapter? to turn the latter, and means forturninnr the gear and for yieldingly urging it toward` the abutmentelement.

22. Apparatus for trimming olf surplus material from the breast coveringflap of a shoe heel comprising a work sitioning abutment elementdisposed in a pliine, a cutter blade, a spindle substantially parallelto the plane of the abutment element, a toothed feed roll mounted on thespindle, said feed roll being bodily movable toward and from the bladecarrier, a gear meshing with the teeth of the feed roll and adapted toturn the latter, a shaft carrying the gear, a movable bearing for theshaft, yielding means urging said shaft in a direction to cause the gearto press the toothed feed roll toward the abutment element, and meansfor rotating the shaft in all positions of its bearing.

23. Apparatus for trimming oil' surplus material from the breastcovering flap of a shoe heel comprisin a blade carrier oscillating in aplane, a ilade mounted on the carrier, a spindle substantially parallelto the lane of oscillation of the blade carrier, a toot ed feed rollmounted on the spindle, said feed roll being bodily movable toward andfrom the blade carrier, a gear meshing with the teeth of the feed rollandadapted to turn the latter, a feed shaft having said gear secured toone of its ends, a movable bearing for the shaft intermediate its ends,a spring tending to move the bearing so as to cause the gear to pressthe toothed feed roll toward the lade carrier, a power shaft, anduniversal joint connections between the power shaft and the other end ofthe feed shaft.

24. Apparatus for trimming olf surplus material from the breast'covering lia of a shoe heel comprising an oscillating rive bar, amovable blade carrier having a blade at one end, means for oscillatingthe drive bar, means for transmitting movement from the drive bar to theblade carrier, a work rest adjacent to the blade, work feeding means,and a drive shaft for actuating the drive bar and the feeding means.

25. A paratus for trimming olf surplus materiaFfrom the breast coveringflap of a shoe heel comprising a drive bar ivotally supportedintermediate its ends, a b ade carrier having a blade at one end and aslotl at its other, a fixed pin engaging said slot, pivot meansconnecting the blade vcarrier intermediate its ends to one end of thedrive bar, a work rest, a feed roll, a drive shaft, an eccentric pin onthe drive shaft engaging a slot in the other end of the drive bar foroscillating the latter, and means actuatfd by the drive shaft forrotating the feed 10 said feed roll being bodily 26. Apparatus fortrimming oft' surplus material from the breast covering flap of a shoeheel comprising a work rest engageable with the breast surface of theshoe heel, and cutting means having a guide element which rests upon theouter lateral face of the heel, said cutting means being adapted to cutoil' the surplus material of the flap.

27. Apparatus for trimming oli' surplus material from the breastcovering flap of a shoe heel comprising a work rest engageable with thebreast surface of the shoe heel, and a cutter blade having a guideelement which engages the outer surface of the heel and a cutting edgefor severing the surplus material of the flap.

28. Apparatus for trimming off surplus material from the breast coveringHap of a shoe heel comprisin a work rest engageable with the breast surace "of the shoe heel, and a cutter blade having a guide element whichengages the outer surface of the heel, said blade having a portioninclined with respect to the guide element and provided with a cuttingedge.

29. Apparatus for trimming o' surplus material from the breast coveringHap of a shoe heel comprisin a Work rest engageable with the breast surace of the shoe heel, and a cutter blade having a guide relement whichengages the outer surface of the heel, said blade havin a V-shapedrecess provided with a cutting ge.

30. Apparatus for removing surplus material from the breast covering apof a shoe heel comprisin means for simultaneously trimming surp usmaterial from the breast covering iap at opposite sides of the heel, andmeans for actuating the trimming means.

31. Apparatus for trimming surplus material from the breast covering Hapof a shoe heel comprising s aced'feed means engageable simultaneous ywith the material of the Hap at opposite sidesof the heel, and cuttingmeans for Severin the material simultaneously at opposite sldes of theheel.

32. Apparatus for trimming surplus material from the breast coveringflap of a shoe heel comprising work supports engageable with the reastsurface of the heel adjacent to opposite sides of the heel,respectively, and cutting means adjacent to each work suport.

p 33. Apparatus for trimming surplus material from the breast covering aof a shoe heel comprising relatively movable trimmer heads adapted toreceive a heel between them, each head comprising work positioning meansengageable with the breast surface of the heel, and cutting means.

34. Apparatus for trimming surplus material from the breast covering aof a shoe heel comprising relatively movablb trimmer heads adapted toseparate to admit a heel between them, each head comprising a work restadapted to engage the breast surface of the shoe heel, cutting means,and feed means.

35. Apparatus for trimming surplus material from the breast coveringflap of a shoe heel comprising relatively movable trimmer heads,yielding means urgin said heads toward each other, the heads eingseparable to admit a shoe heel between them, each head havin cuttingmeans and a work rest engagea le with the breast surface of the heel,and means for actuatin the cutting means in all relative positions o theheads.

36. Apparatus for trimming surplus material from the breast covering iapof a shoe heel comprising a pair of swinging trimmer heads, spring meansurging said heads toward one another but permitting them to separate toadmit a shoe heel between them, each head comprising a work restengageable with the breast surface of the shoe heel, work feeding means,and movable cutter, and means for actuating the cutters and feed meansin all relative positions of the heads.

37. Apparatus for trimming surplus material from the breast coveringflap of a shoe heel comprising a pair of swinging trimmer heads, springmeans urging said heads toward one another but permitting them toseparate to admit a shoe heel between them, each head comprising a workrest engageable With the breast surface of the shoe heel, work feedingmeans, and a movable cutter, adjustable stops to limit approach of thetrimmer heads, and means including universal joint connections foractuating the cutters and feed means in all relative positions of theheads.

38. Apparatus for trimming oi surplus material from the breast coveringflap of a shoe heel comprising a stationary work rest having a surfaceengageable with the breast surface of the shoe heel, an oscillatorymember carrying an element constituting a guide which rests upon theouter lateral face of the heel and an element having a cutting ed eoperative to cut off the surplus material o the flap, and means fordrivin said oscillatory member.

39. pparatus of the class described comprising a work rest having adownwardly tapering surface for engagement with the surface of thebreast covering flap of a shoe heel, a cutter having its cutting edgedisposed f in a plane intersecting the breast surface of a heel engaginthe rest, said cutter oscillating over one sut ace of the rest wherebyto trim oli the surplus material of the breast covering flap, a guideelement which rests upon the outer lateral face of the heel during thecutting operation, and means for oscillating the cutter.

40. Apparatus for trimming oil? surplus material from the breastcovering ap of` a shoe heel comprising a work rest having a surface forengagement with the breast surface of a shoe heel and having an edgeconstituting a stationary blade, an oscillating cutter having itscutting edge disposed in a. plane intersecting the plane of the breastsurface of a heel engaging the rest, shid cutter oscillating over onesurface of the rest and in close proximity thereto vifithdts cuttingedge intersecting the plane ofthe edge of the stationary blade, andmeans for oscillating the cutter, the path of movement of the cutterhaving a substantial component in the direction of the intended cut.

Signed by me at Boston, Massachusetts this 22nd day of May, 1929.

NICHOLAS W. MATHEY.

face of a shoe heel and having an edge constituting a stationary blade,an oscillating cutter having its cutting edge disposed in a planeintersecting the plane of the breast surface of a heel engaging therest, said eutter oscillating over one surface of the rest and in closeproximity thereto with its cutting edge intersecting the plane of theedge of the stationary blade, and means for oscillating the cutter, thepath of movement of the eutter having a substantial component in thedirection of the intended eut.

Signed by me at Boston, Massachusetts this 22nd day of May, 1929.

NICHOLAS W. MATHEY.

D l S C L A l M E R 1,807,996.-I\lcholas W. zlflathey, Boston, Mass.TRIMMING MACHINE. Patent dated June 2, 1931. Disclaimer filed May 20,1940, by the patentee. Hereby enters this` disclaimer to claims 5 and 40of said Letters Patent, and to that part of the specileation, page 2,lines 90 and 91. which is in the following words, to witz. the latter infact acting more or less as a fixed or ledger blade.

[Ojiczal Gazette June 18, 1.940.]

DISCLAIMER l,807,996.-.Vckola.s' W. Alflathfqq, BosLon, Mass. TmMMlNGMACHINE. PatentI flntml June 2, |931. Disclaimvr filed Muy 20, |940, bythe patentee.

llvrvby enters this lisvlnimor lo claims .3 nml 4U nl said LetlersPatent, and lo that part of the specilimiiml, pngi 2, lines 90 und 91which is 1u the following words, to wit: the lutter in fact; :metingmore or' loss as :L fixed or ledger blade."

[Oficial Gazette June 18, 1.940.]

